The upcoming Summit of the Americas in Cartagena, which will be attended by many latinamerican heads of state as well as Barack Obama, is set to be an historic debate over the legalization of drugs and the end of the war on drugs. Jamie Doward writes in the Guardian…

He insists, however, that prohibition has failed and an alternative system must be found. “Our proposal as the Guatemalan government is to abandon any ideological consideration regarding drug policy (whether prohibition or liberalisation) and to foster a global intergovernmental dialogue based on a realistic approach to drug regulation. Drug consumption, production and trafficking should be subject to global regulations, which means that drug consumption and production should be legalised, but within certain limits and conditions.”

The decision by Pérez Molina to speak out is seen as highly significant and not without political risk. Polls suggest the vast majority of Guatemalans oppose decriminalisation, but Pérez Molina’s comments are seen by many as helping to usher in a new era of debate. They will be studied closely by foreign policy experts who detect that Latin American leaders are shifting their stance on prohibition following decades of drugs wars that have left hundreds of thousands dead.

Mexico’s president, Felipe Calderón, has called for a national debate on the issue. Last year Juan Manuel Santos, Colombia’s president, told the Observer that if legalising drugs curtailed the power of organised criminal gangs who had thrived during prohibition, “and the world thinks that’s the solution, I will welcome it”.